/Engine/Plugins/Compositing/Composure/Source/Composure/Public/CompositingElements/CompositingMaterialPass.h
FCompositingParamPayload
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType)) struct FCompositingParamPayload
TMap<FName, fl...
ScalarParamOverrides
Map of scalar material parameter names to their corresponding override values
TMap<FName,TO...
TextureParamOverrides
Map of texture material parameter names to their corresponding override values
TMap<FName,FL...
VectorParamOverrides
Map of vector material parameter names to their corresponding override values